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| 1 | Tailoring the microstructural characteristic and improving the corrosion resistance of extruded dilute Mg-0.5Bi-0.5Sn alloy by microalloying with Mn显示文摘Mg-0.5Bi-0.5Sn alloys with and without microalloying with 0.5 wt%Mn were subjected to extrusion,and the effect of Mn microalloying on the microstructural characteristic and corrosion behavior of the extruded alloys was investigated.The results indicated that the average grain size and the density of dislocations decreased,and a new Mg_(26.67)Mn_(65.47)Fe_(7.86)second phase as well as grain boundary segregation of Sn atoms could be observed in certain micro-regions of the extruded dilute Mg-0.5Bi-0.5Sn-0.5 Mn alloy.The tailoring of microstructure resulted in the significant enhancement in corrosion resistance(R_(p)increased from 1095.91Ωcm^(2)to 5008.79Ωcm^(2)).In addition,grain boundary segregation resulted in intergranular corrosion and led to the dissolution of Sn atoms.Hence,the dissolution rate of the matrix in Mg-0.5Bi-0.5Sn-0.5Mn alloy could be inhibited by the corrosion product film containing an intermediate product(SnO_(2)). | Yang Liu Wei-li Cheng Xiong-jie Gu Yan-hui Liu Zeqin Cui Lifei Wang Hong-xia Wang | 2021 | Journal of Magnesium and Alloys2021，9，5： | 5 |
| 2 | Anisotropy study of the microstructure and properties of AlCoCrFeNi2.1 eutectic high entropy alloy additively manufactured by selective laser melting显示文摘The AlCoCrFeNi2.1 eutectic high-entropy alloy(EHEA) was prepared by selective laser melting(SLM), focusing on the anisotropy of microstructure and mechanical performance. The AlCoCrFeNi2.1 EHEA printed by SLM has face-centered cubic(FCC) and body-centered cubic(BCC)/B2 phases, and the FCC phase accumulates at the boundary of the molten pool. With the increase in volumetric energy density(VED), the content of the FCC phase parallel to the surface in the direction of the building increases from 30.9% to 41%. The X–Z plane mainly produces columnar crystals along the temperature gradient, while a large number of equiaxed crystals are produced in the X–Y direction. When the volume energy density is 157 k J/mol(VED 157), the average grain size is 1.33 μm for BCC and 1.14 μm for FCC, which is significantly smaller than other preparation methods. Due to defect distribution and size, the microhardness of the X–Y plane is generally higher than that of the X–Z plane, with maximum hardnesses of 660 HV and 655 HV, respectively, which is much higher than those of traditionally manufactured counterparts.The compression performance of SLM process AlCoCrFeNi2.1 EHEAs shows maximum yield strength of 1567 MPa, and the ultimate compressive strength can reach 3276 MPa. | Liwei Lan Wenxian Wang Zeqin Cui Xiaohu Hao Dong Qiu | 2022 | Journal of Materials Science & Technology2022，，34： | 2 |
| 3 | Microstructure and properties of Nd:YAG laser welded AZ31B magnesium alloy显示文摘 | Cui Zeqin Cheng Linxin Si En Wang Wenxian Xu Bingshe | 2014 | China Welding2014，23，2： | 1 |
| 4 | CsTRM5 regulates fruit shape via mediating cell division direction and cell expansion in cucumber显示文摘Fruit shape and size are important appearance and yield traits in cucumber,but the underlying genes and their regulatory mechanisms remain poorly understood.Here we identified a mutant with spherical fruits from an Ethyl Methane Sulfonate(EMS)-mutagenized library,named the qiu mutant.Compared with the cylindrical fruit shape in 32X(wild type),the fruit shape in qiu was round due to reduced fruit length and increased fruit diameter.MutMap analysis narrowed the candidate gene in the 6.47 MB range on Chr2,harboring the FS2.1 locus reported previously.A single-nucleotide polymorphism(SNP)(11359603)causing a truncated protein of CsaV3_2G013800,the homolog of tomato fruit shape gene SlTRM5,may underlie the fruit shape variation in the qiu mutant.Knockout of CsTRM5 by the CRISPR-Cas9 system confirmed that CsaV3_2G013800/CsTRM5 was the causal gene responsible for qiu.Sectioning analysis showed that the spherical fruit in qiu resulted mainly from increased and reduced cell division along the transverse and longitudinal directions,respectively.Meanwhile,the repressed cell expansion contributed to the decreased fruit length in qiu.Transcriptome profiling showed that the expression levels of cell-wall-related genes and abscisic acid(ABA)pathway genes were significantly upregulated in qiu.Hormone measurements indicated that ABA content was greatly increased in the qiu mutant.Exogenous ABA application reduced fruit elongation by inhibiting cell expansion in cucumber.Taken together,these data suggest that CsTRM5 regulates fruit shape by affecting cell division direction and cell expansion,and that ABA participates in the CsTRM5-mediated cell expansion during fruit elongation in cucumber. | Yang Xie Xiaofeng Liu Chengzhen Sun Xiaofei Song Xiaoli Li Haonan Cui Jingyu Guo Liu Liu Ao Ying Zeqin Zhang Xueyun Zhu Liying Yan Xiaolan Zhang | 2023 | Horticulture Research2023，10，3： | 1 |
| 5 | A biomathematical model for pressure-depen- dent lamina cribrosa behavior显示文摘 | Dongqi H Zeqin R | 2009 | J Biomech2009，32，6： | 1 |
| 6 | Chemical-reaction-path modeling of ore-depositional processes in the Shangmanggang gold deposit, Yunnan, China显示文摘THE Shangmanggang gold deposit is located at the southwestern corner of Yunnan, China. The deposit occurs along the southwest-trending Shangmanggang Fault. Near the surface, the hanging wall of the fault consists of sandstone and mudstone of the Middle Jurassic Mongga Formation (J2m), and also severs asthe hanging wall of the gold orebodies. The footwall of the fault is composed of dolomitite locally intercalated with medium-bedded limestone of Lower Permian Sazipo Formation (P1s). In the depth, the faultcut into strata of the Sazipo Formation (P1s). The deposit is characterized by intense clay alteration,which is similar to the Mercur Gold Deposit, Utah of USA, and by unique hydrothermal pinnacle karsl, | LI Zeqin, TU Guangchi and LI Chaoyang Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China | 1999 | Chinese Science Bulletin1999，44，S2： | 1 |
| 7 | A biomathematical model for pressure-dependent lamina cribrosa behavior显示文摘 | Dongqi H Zeqin R | 1999 | J Biomech1999，32，： | 1 |
| 8 | Study of the styrene-acrylic emulsion modified by hydroxyl-phosphate ester and its stoving varnish显示文摘 | Zhong Zeqin Yu Qian Yao Huang | 2013 | Progress in Organic Coatings2013，76，5： | 1 |
| 9 | A potential new process for improvingnitrogen removal in constructed wetlands : promoting coexistence ofpartial-nitrification and ANAMMOX 显示文摘 | DONG Zeqin SUN Tieheng | 2007 | Ecological Engineering2007，31，2： | 1 |
| 10 | Study of the styrene–acrylic emulsion modified by hydroxyl-phosphate ester and its stoving varnish显示文摘 | Zeqin Zhong Qian Yu Huang Yao Weitian Wu Weiliang Feng Lin Yu Zhenyang Xu | 2013 | Progress in Organic Coatings2013，，5： | 1 |
| 11 | A biomathematical model for p ressure2dependent lamina cribrosa behavior显示文摘 | Dongqi H Zeqin R | | 0，，6： | 1 |
| 12 | Study on laser surface remelting of plasma-sprayed Al–Si/1<ce:hsp sp='0.25'/>wt% nano-Si 3 N 4 coating on AZ31B magnesium alloy显示文摘 | Yaqiong Ge Wenxian Wang Xin Wang Zeqin Cui Bingshe Xu | 2013 | Applied Surface Science2013，，： | 1 |
| 13 | Study of the sty- rene-acrylic emulsion modified by hydroxyl-phosphate ester and its storing varnish显示文摘 | Zhong Zeqin Yu Qian Yao Huang | 2013 | Prog Organic Coat2013，76，5： | 1 |
| 14 | A potential new process for improving nitrogen removal in constructed wetlands : Pro- moting coexistence of partial-nitrification and ANAM- MOX显示文摘 | Dong Zeqin Sun Tieheng | 2007 | Ecological Engineering2007，31，2： | 1 |
| 15 | Polarization properties in helical metamaterials显示文摘在最后几年里,在那里由于巨大的圆形的二色性,宽广操作乐队,和紧缩的结构的优点在螺旋状的 metamaterials 的研究一直在种兴趣。然而,大多数研究在单身者的情况中 -- ,通报螺旋状的 metamaterials,和正常发生。在这篇论文,我们与有限差别的时间域(FDTD ) 在螺旋状的 metamaterials 考察了最近的模拟工作方法,它主要包括了光表演两倍 -- ,三 -- ,四螺旋状的 metamaterials,椭圆螺旋状的 metamaterials 的表演,和在倾斜的发生的条件下面的极化性质。结果证明双 helical metamaterials 有操作乐队超过 50% ,它是比单人赛螺旋状的结构的那些宽广的。但是他们俩有低 signal-to-noise 比率大约 10 dB。三螺旋状、四螺旋状的 metamaterials 在全面性能有重要改进。为 ellipticalhelixes,模拟结果建议播送的光能有椭圆的极化状态。在倾斜的发生的条件上,悦耳的极化状态的新奇性质发生在螺旋状的 metamaterials,它能有象悦耳的光 polarizers,悦耳的横梁 splitters,和悦耳的光衰减器那样的宽广得多的潜在的应用。 | Zhenyu YANG Peng ZHANG Peiyuan XIE Lin WU Zeqin LU Ming ZHAO | 2012 | Frontiers of Optoelectronics2012，5，3： | 1 |
| 16 | Geochemical characteristics of magnetites from the Lala IOCG deposit of Huili Sichuan, China, and their genetic research显示文摘1 Geological Features of this ore depositHuili Lala IOCG deposit is located in the southwest margin of the Yangtze block and the centre area ofwest-Sichuan and Yunnan province.It is an important Fe-Cu-Mo-Au-REE polymetallic deposit in southwest China.This deposit has also been considered as a typical iron oxide-copper-gold(IOCG)deposit(Li et al.,2012), | LIU Xiaowen ZHENG Kai LI Zeqin | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 0 |
| 17 | Unique Duplex Microstructure and Porosity Effect on Mechanical Properties of AlCoCrFeNi_(2.1) Eutectic High-Entropy Alloys Processed by Selective Laser Melting显示文摘Selective laser melting(SLM)was performed on AlCoCrFeNi_(2.1) eutectic high-entropy alloys(EHEAs),and the unique duplex microstructure and porosity were investigated as well as the negative effect on mechanical properties.SLM printed AlCoCrFeNi_(2.1) EHEAs is composed of face-centered cubic and BCC/B2 phases,and the surface texture of samples perpendicular to and parallel to the building direction is different.From the bottom of the molten pool to the inside,the structure changes from dendrites to columnar crystals and then to cellular crystals,the distribution of elements in and around the molten pool is uniform,and there is no element segregation.The surface hardness of as-printed AlCoCrFeNi_(2.1) EHEAs is higher than that of as-cast ones due to the grain refinement strengthening,and there is anisotropy in different surface hardness,the highest hardness is 580 HV(X–Y plane)and 560 HV(X–Z plane).The reduction of bearing area and tip stress concentration caused by pores have adverse effects on the tensile strength and elongation of the alloy,the ultimate tensile strength increased from 1060 to 1289 MPa. | Liwei Lan Wenxian Wang Zeqin Cui Xiaohu Hao | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，9： | 0 |
| 18 | Effect of Sintering Time on the Mechanical and Corrosion Behavior of Zn-Mg Composites with a Core-Shell Structure Prepared by SPS显示文摘Zn-10 Mg composite with a core-shell structure was prepared by spark plasma sintering(SPS)technology,and a systematic study of the microstructure and properties has been conducted for different sintering times.The shell layer dominated by the hard MgZn2 phase thickens with the increase in sintering time,which has a positive effect on the mechanical and degradation properties of the material.The sample sintered for 20 min(T-20)has the best mechanical properties,with a compressive strength of 226 MPa and a compression rate of 6.5%.The corrosion resistance of samples increases as the sintering time prolongs,while the hydrogen evolution volume and pH value decrease in the immersion experiment.Furthermore,the increase in the shell thickness significantly reduces the corrosion rate,which is attributed to the weakening of the galvanic corrosion reaction between the Mg core and the MgZn2 shell.Therefore,composite with unique core-shell structure provides an advanced design idea for degradable biomaterials,and a reasonable control of sintering time can provide the optimal design strategy. | Zeqin Cui Lei Zhou Xiaohu Hao Mengda Luo Wenxian Wang Jianzhong Wang Weiguo Li | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，8： | 0 |
| 19 | Ecological risk assessment for heavy metal contamination of a new consideration—Agricultural soils显示文摘 | Zeqin LI Ningjing HU Weijuan FENG Barbara Sherriff | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
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